Pressure distribution issues of the vent valve and the noise-reducing orifice plate downstream of it
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As the title suggests: Nowadays, the vent valves of many devices use control valves combined with noise reduction plates to reduce noise levels. However, the use of noise reduction plates affects the selection of the control valves, as these plates take some of the pressure drop on themselves. In such cases, how is the selection of both the control valve and the noise reduction plate determined? What about the pressure distribution?
Sofa! No experts are passing by to give some advice?
The experts might be busy and haven’t seen it: @ylb913 @EvilFullOfSins @HSLJHZ @WiseOne
Seeing so many great things, yet all I can do is sigh in frustration! Cheer yourself on! ! ! !
It’s a shame that no one pays any attention~:'(
Maybe the experts are all quite busy; let’s try again @*lihuagong @jacques0920 @HSLJHZ @ylb913
The control valve mentioned by the poster is actually a vent valve (on-off valve), with a flow-limiting orifice plate connected in series upstream to protect the valve. I think the selection and calculation are no different from those for ordinary throttle orifice plate series valves. As for what part the pressure distribution refers to, which part is it?
Thank you! Finally, someone spoke up~:handshake What I’m referring to is the relief valve; it’s actually a control valve. Additionally, there’s a noise-reducing plate connected in series after the valve, which serves to reduce noise levels. For example, if the outlet pressure is 1 atm, or 0.1 Mpa, then inversely, the inlet pressure of the orifice plate should be around 0.18 Mpa. Is this pressure the outlet pressure of the valve?
It can be considered that way. Under normal circumstances, valves and orifice plates can be treated as a single unit.
I keep getting promoted; thank you so much for your kindness, moderator!
Here’s another push for you; more exchanges are welcome